How to “expand” trig of a compound angle
lesson notes:02 sum & difference of angles
How to “expand” trig of a compound angle
lesson notes:02 sum & difference of angles
Creating a formula that allows the “expansion” of trig functions
lesson notes:07 sum & difference of powers
To calculate the ratio of compound angles in trig, or the sum and difference of angles, we create some new identities.
lesson notes:02 sum & difference of angles
Creating formulae for expanding the trig functions involving the sum and difference of angles.
lesson notes:02 sum & difference of angles
An application for compound angles in Cartesian geometry.
lesson notes:03 angle between two lines